Home / 12,320,106.80-18,467,128.44-4,640,428.76

Finding the Fourth Proportional to 12,320,106.80, 18,467,128.44 and 4,640,428.76

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Solution

The fourth proportional to 12,320,106.80, 18,467,128.44 and 4,640,428.76 is: 6,955,734.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320,106.80 : 18,467,128.44 = 4,640,428.76 : x
  2. Step 2: Convert to fraction form
    12,320,106.80/18,467,128.44 = 4,640,428.76/x
  3. Step 3: Cross multiply
    12,320,106.80x = 18,467,128.44 × 4,640,428.76
  4. Step 4: Simplify right side
    12,320,106.80x = 85,695,393,927,589.94
  5. Step 5: Solve for x
    x = 85,695,393,927,589.94/12,320,106.80
  6. Step 6: Final answer
    x = 6,955,734.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.